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POYouTube API Browser-Based Upload with Ajax for Progress Bar
 

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  1. POYouTube API Browser-Based Upload with Ajax for Progress Bar
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    <p>I am trying to use the YouTube API to perform a browser-based upload, but also use Ajax for the purpose of showing a progress bar.</p> <p>I started off here: <a href="https://developers.google.com/youtube/2.0/developers_guide_protocol_browser_based_uploading" rel="nofollow">https://developers.google.com/youtube/2.0/developers_guide_protocol_browser_based_uploading</a></p> <p>It works 100% if I just use the basic HTML form post.</p> <pre><code> &lt;form id="frmYouTube" enctype="multipart/form-data" method="post" action="https://uploads.gdata.youtube.com/action/FormDataUpload/YOUTUBE_URL_HERE?nexturl=https%3a%2f%2fdomain%2fpageafter%2fVideoUploadDone%3fid2%3dLOCAL_ID"&gt; &lt;table&gt; &lt;tr&gt; &lt;td&gt;&lt;input type="file" name="file" /&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt; &lt;input type="hidden" name="token" value="YOUTUBE_TOKEN_HERE" /&gt; &lt;input type="submit" value="Upload" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/form&gt; </code></pre> <p>However if I try to add some Javascript I run into a problem. I'm also including MooTools and the Request.File class from <a href="http://mootools.net/forge/p/form_upload" rel="nofollow">http://mootools.net/forge/p/form_upload</a>.</p> <p>Here is a simplified version of the code: </p> <pre><code>var yt = $('frmYouTube'); var ytDone = function () { // Code to display: 'Video upload complete. Return to &lt;a href="/Acount"&gt;your account&lt;/a&gt;.'; }; var ytProgress = function (event, xhr) { var loaded = event.loaded, total = event.total; // Code to display: 'Uploading... ' + (parseInt(loaded / total * 100, 10)) + '%'; }; yt.addEvents({ 'submit': function (ev) { ev.stop(); var rf = new Request.File({ url: yt.get('action'), onProgress: ytProgress, onFailure: function (xhr) { ytError('Upload Failed (1).'); }, onCancel: function () { ytError('Upload Canceled.'); }, onException: function () { ytError('Upload Failed (2).'); }, onSuccess: ytDone }); yt.getElements('input').each(function (field) { if (field.files) { rf.append(field.get('name'), field.files[0]); } else { rf.append(field.get('name'), field.get('value')); } }); rf.send(); } }); &lt;/script&gt; </code></pre> <p>At this point the file gets uploaded successfully, and YouTube returns a 302 redirect to my "nexturl," but because of cross-origin rules the redirect is not followed and I can not access the location header using Javascript.</p> <p>I've seen a few solutions that involved iframes, but that won't work if you want a progress bar. Has anyone come up with a work-around to do browser based uploads to YouTube and show a progress bar.</p>
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    1. COYouTube has CORS setup and working on their API (http://gdata-samples.googlecode.com/svn/trunk/gdata/youtube_upload_cors.html), so it is theoretically possible. I am looking for an option to return the result directly instead of it being appended to the _nexturl_ via a 302 redirect. Or if there was some other cross-origin header or protocol to allow an Ajax cross-domain redirect, or even just access to the "Location" header programmatically.
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